列表控件(DropDownList,ListBox和BulletedList)

最新推荐文章于 2020-11-05 11:01:15 发布

SammyOnce

最新推荐文章于 2020-11-05 11:01:15 发布

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文章标签： asp textbox server object html div

本文链接：https://blog.youkuaiyun.com/xzhai2007/article/details/1629162

本文介绍了ASP.NET中三种常用的列表控件：DropDownList、ListBox和BulletedList的使用方法及属性调用技巧，并通过实例展示了如何在页面中设置这些控件并获取用户的输入。

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列表控件(DropDownList,ListBox和BulletedList).aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="列表控件(DropDownList,ListBox和BulletedList).aspx.cs" Inherits="列表控件_DropDownList_ListBox和BulletedList_" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<title>列表控件(DropDownList,ListBox和BulletedList)</title>

</head>

<body>

<div>

<asp:DropDownList ID="DropDownList1" runat="server" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" AutoPostBack="True">

<asp:ListItem>江苏</asp:ListItem>

<asp:ListItem>北京</asp:ListItem>

<asp:ListItem>上海</asp:ListItem>

<asp:ListItem>广州</asp:ListItem>

<asp:ListItem>湖南</asp:ListItem>

</asp:DropDownList>

<br />

<asp:ListBox ID="ListBox1" runat="server" OnSelectedIndexChanged="ListBox1_SelectedIndexChanged" AutoPostBack="True">

<asp:ListItem>音乐</asp:ListItem>

<asp:ListItem>游戏</asp:ListItem>

<asp:ListItem>电影</asp:ListItem>

<asp:ListItem></asp:ListItem>

</asp:ListBox><br />

<br />

<asp:BulletedList ID="BulletedList1" runat="server"

　　 DisplayMode ="linkButton" OnClick="BulletedList1_Click" >

<asp:ListItem>数学</asp:ListItem>

<asp:ListItem>美术</asp:ListItem>

<asp:ListItem>英语</asp:ListItem>

<asp:ListItem>计算机</asp:ListItem>

</asp:BulletedList>

<br />

我现在主要想理解的就是各个空件里面怎样很好的调用各个列表控件里面的每一个属性。Text 或者Value属性倒是没有什么，只要能定位到每一个属性就好，下面我就做一个测试看下<br />

<asp:TextBox ID="TextBox1" runat="server" Style="position: relative" Width="581px"></asp:TextBox><br />

根据上面的选择我们在这个里面显示数据<br />

<br />

晕死开始右犯了个错误郁闷啊,AutoPostBack没有设置点了半天没有反应呵呵。ＢＳ下自己。<br />

<br />

还有就是这三个空件也都可以进行数据的绑定，和上一个例题里面几乎一样<br />

就试一个看下<br />

<asp:BulletedList ID="BulletedList2" DisplayMode ="linkButton" runat="server" DataSourceID="SqlDataSource1"

DataTextField="BLname" DataValueField="BLid" Style="position: relative" Width="250px" OnClick="BulletedList2_Click">

</asp:BulletedList>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:DBCONNECTIONSTRING %>"

SelectCommand="SELECT [BLname], [BLid] FROM [BulletedList]"></asp:SqlDataSource>

</div>

</form>

</body>

</html>

列表控件(DropDownList,ListBox和BulletedList).aspx.cs

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public partial class 列表控件_DropDownList_ListBox和BulletedList_ : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)

{

this.TextBox1.Text = this.DropDownList1.SelectedItem.Text;

}

protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)

{

this.TextBox1.Text = this.ListBox1.SelectedItem.Text;

}

protected void BulletedList1_Click(object sender, BulletedListEventArgs e)

{

this.TextBox1.Text = this.BulletedList1.Items[e.Index].Text;

}

protected void BulletedList2_Click(object sender, BulletedListEventArgs e)

{

this.TextBox1.Text = this.BulletedList2.Items[e.Index].Text;

}